Abstract: Provided is controlling apparatus for an electric motor which is driven in accordance with a driving signal input through electric contacts held in slide contact with each other, the controlling apparatus including: a superimposed signal generating unit, which generates a superimposed signal having a peak voltage higher than a voltage of the driving signal; and a controlling unit, which generates the driving signal based on a controlling signal input so as to control the driving of the electric motor, and superimposes the superimposed signal onto the driving signal and output the resultant signal to the electric motor, the controlling unit superimposing the superimposed signal onto the driving signal and outputting the resultant signal to the electric motor when a state in which the driving signal is lower than a predetermined voltage continues for a time period which is longer than a predetermined time period.

Abstract: A drive control apparatus includes a movable member; a driver configured to drive the movable member; a transmission device configured to transmit a driving force of the driver to the movable member; a first detector provided on the movable member side of the transmission device configured to detect a driving state of the movable member; a second detector provided on the driver side of the transmission device configured to detect a driving state of the driver; and a controller configured to control driving of the driver. The controller is configured to select, as information to be fed back, first drive information obtained from the first detector, or second drive information obtained from the second detector, based on the first drive information and the second drive information; and control the driving of the driver based on the selected one of the first drive information and the second drive information.

Abstract: Provided is controlling apparatus for an electric motor which is driven in accordance with a driving signal input through electric contacts held in slide contact with each other, the controlling apparatus including: a superimposed signal generating unit, which generates a superimposed signal having a peak voltage higher than a voltage of the driving signal; and a controlling unit, which generates the driving signal based on a controlling signal input so as to control the driving of the electric motor, and superimposes the superimposed signal onto the driving signal and output the resultant signal to the electric motor, the controlling unit superimposing the superimposed signal onto the driving signal and outputting the resultant signal to the electric motor when a state in which the driving signal is lower than a predetermined voltage continues for a time period which is longer than a predetermined time period.

Abstract: A drive control apparatus includes a movable member; a driver configured to drive the movable member; a transmission device configured to transmit a driving force of the driver to the movable member; a first detector provided on the movable member side of the transmission device configured to detect a driving state of the movable member; a second detector provided on the driver side of the transmission device configured to detect a driving state of the driver; and a controller configured to control driving of the driver. The controller is configured to select, as information to be fed back, first drive information obtained from the first detector, or second drive information obtained from the second detector, based on the first drive information and the second drive information; and control the driving of the driver based on the selected one of the first drive information and the second drive information.

Abstract: Provided is a three-dimensional image pickup system including: a pair of lens apparatus; a camera apparatus for picking up subject images formed by the pair of lens apparatus; a convergence angle changing unit for changing a convergence angle of the pair of lens apparatus; a controller for controlling the convergence angle of the pair of lens apparatus in association with an operation of focus lens units of the pair of lens apparatus; and an interlock switching unit for switching between an interlocked state in which the convergence angle is interlocked with the operation of the focus lens units and a non-interlocked state in which the convergence angle is not interlocked with the operation of the focus lens units.

Abstract: The information supplying apparatus (11, 131) is configured to supply first information to an image processing apparatus performing image processing for reducing an image component which is included in an image obtained by image pickup through an optical system and is generated due to aberration of the optical system. The first information is used in the image processing. The information supplying apparatus includes an information acquiring part (11) configured to acquire second information showing a state of at least one of an optical adjusting element (15) included in the optical system and an operation part operated for actuating the optical adjusting element, and an information generating part (131) configured to generate, based on the second information, the first information used in the image processing performed at a point in time after acquisition of the second information.

Abstract: A lens apparatus is electrically connected to a support apparatus including a detecting unit that detects displacement information corresponding to pan or tilt. The lens apparatus includes a converter configured to convert the displacement information into control information; an image stabilization unit configured to perform image stabilization by using the control information; and a format transmitting unit configured to transmit a signal used for discriminating a format of the displacement information to the converter. The converter uses the signal transmitted from the format transmitting unit to convert the displacement information into the control information.

Abstract: The information supplying apparatus (11, 131) is configured to supply first information to an image processing apparatus performing image processing for reducing an image component which is included in an image obtained by image pickup through an optical system and is generated due to aberration of the optical system. The first information is used in the image processing. The information supplying apparatus includes an information acquiring part (11) configured to acquire second information showing a state of at least one of an optical adjusting element (15) included in the optical system and an operation part operated for actuating the optical adjusting element, and an information generating part (131) configured to generate, based on the second information, the first information used in the image processing performed at a point in time after acquisition of the second information.

Abstract: A lens apparatus includes an optical lens unit including a movable lens portion, a drive unit configured to drive the movable lens portion, a control unit configured to control the drive unit, a difference calculation unit configured to calculate a difference between command signals received at intervals of a predetermined period, and an addition unit configured to add the difference calculated by the difference calculation unit to each of the command signals, wherein the control unit controls the drive unit based on a result of an addition performed by the addition unit.

Abstract: A lens apparatus is electrically connected to a support apparatus including a detecting unit that detects displacement information corresponding to pan or tilt. The lens apparatus includes a converter configured to convert the displacement information into control information; an image stabilization unit configured to perform image stabilization by using the control information; and a format transmitting unit configured to transmit a signal used for discriminating a format of the displacement information to the converter. The converter uses the signal transmitted from the format transmitting unit to convert the displacement information into the control information.

Abstract: To form a center tap (CT), at least two coils must be formed. This increases the number of steps in the winding process and decreases the workability. To prevent this, a conductor having a plurality of plate portions that are connected to each other at one vertex of a rectangular shape is formed. The conductor is wound on a winding shaft, thus forming two coils.

Abstract: In a push-pull switching circuit for a low-voltage, large current application, a decrease in resistance of a transformer and of its peripheral circuit is sought for. In view of this, a coil (2) is fixed at its terminal (T1) side, and is wound around a columnar winding core (1) counterclockwise in the order of a lower surface (H), side surface (I), upper surface (J), side surface (K), and the lower surface (H). A coil (3) is fixed at its terminal (T4) side, and is wound clockwise in the order of the upper surface (J), side surface (I), lower surface (H), side surface (K), and upper surface (J).

Abstract: A lens apparatus includes an optical lens unit including a movable lens portion, a drive unit configured to drive the movable lens portion, a control unit configured to control the drive unit, a difference calculation unit configured to calculate a difference between command signals received at intervals of a predetermined period, and an addition unit configured to add the difference calculated by the difference calculation unit to each of the command signals, wherein the control unit controls the drive unit based on a result of an addition performed by the addition unit.

Abstract: In an inductor having a core and first and second coils wound upon the core, the wire of the first coil and the wire of the second coil lie are wound so as to lie parallel to each other and contact the core. The winding starting position of the first coil is made to coincide with the winding starting position of the second coil along the axial direction of the core and is offset from the winding starting position of the second coil along the winding direction of the core. As a result, the area factor of the coils in the winding area of the inductor can be improved and the size of the inductor reduced.

Abstract: An adhering process of adhering a winding, after the winding is wound on the bobbin, to a bobbin entirely or partly with an adhesive tape, for the purpose of reliably fixing the winding to the bobbin, increases the manufacturing cost of a transformer. To solve this problem, a primary winding (13) is wound on a winding core (111). Extracting portions of the primary winding (13) are caused to intersect, and their terminal ends are connected to terminals (14) which oppose each other through the winding core (111) and which are arranged within a region having end portions of a winding space of the winding core (111) as boundaries.

Abstract: In an inductor having a core and first and second coils wound upon the core, the wire of the first coil and the wire of the second coil lie are wound so as to lie parallel to each other and contact the core. The winding starting position of the first coil is made to coincide with the winding starting position of the second coil along the axial direction of the core and is offset from the winding starting position of the second coil along the winding direction of the core. As a result, the area factor of the coils in the winding area of the inductor can be improved and the size of the inductor reduced.

Abstract: In a power conversion system having a DC power supply which has an almost fixed DC voltage to ground and a predetermined stray capacitance to ground and outputs a DC power, and a power converter which converts the DC power output from the DC power supply into an AC power by switching, the phase of an AC voltage to ground generated in the DC power supply by switching is detected, the phase of an AC ground fault current that flows through the stray capacitance to ground and the ground fault resistance of the DC power supply is detected, and the difference between the two detected phases is compared with a predetermined threshold value, thereby determining a DC ground fault in the DC power supply. With this arrangement, the ground fault state of the DC power supply can more accurately be detected. In addition, the operation efficiency of the power conversion system can be increased.

Abstract: Along with the expansion of the application range of solar power generation systems, connection to a single-phase 100-V system is required. To most easily meet this requirement, a non-insulated inverter with a single-phase two-wire 100-V output is used. It is preferable to use an inverter with a single-phase two-wire 200-V output, i.e., a most popular commercially available inverter. For this purpose, a power supplied from a solar battery is converted into a single-phase three-wire 200-V AC power form by the inverter. The output from the inverter with non-insulated inputs and outputs is supplied to a system through a transformer arranged to connect the line of the single-phase three-wire 200-V AC power to a single-phase two-wire 100-V system with one line grounded. To make a ground fault sensor incorporated in the inverter function, the median potential line of the single-phase three-wire 200-V AC power is connected to the ground line of the system.

Abstract: In a push-pull switching circuit for a low-voltage, large-current application, it is desired to decrease the resistance of a transformer and of its peripheral circuit. For this purpose, a first coil (35) is wound around a first winding core (31) with respect to as a winding start position a side surface of the first winding core (31) which does not oppose a second winding core (31). A second coil (35) is wound around the second winding core (31), with respect to as a winding start position a side surface of the second winding core (31) which opposes the first winding core (31), in the same winding direction as that of the first coil (35) and in a feeding direction different from that of the first coil (35). The first and second coils are electrically connected in series with each other.

Abstract: A power converter includes a transformer, a full-bridge rectifying circuit which is located on the secondary side of the transformer and has at least a pair of self-arc-suppressing elements which are driven while being inverted, connection means which connects the negative-pole-side connection line on the primary side of the transformer to that on the secondary side of the transformer, and a control circuit which is commonly used to drive circuits on the primary and secondary sides of the transformer. The self-arc-suppressing elements are driven by the control circuit.